OpenSlides/openslides/motion/workflow.py

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from django.conf import settings
from django.core import exceptions
from django.utils.importlib import import_module
from openslides.config.models import config
ugettext = lambda s: s
_workflow = None
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class State(object):
def __init__(self, id, name, next_states=[], create_poll=False, support=False,
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edit_as_submitter=False, version_permission=True):
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self.id = id
self.name = name
self.next_states = next_states
self.create_poll = create_poll
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self.support = support
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self.edit_as_submitter = edit_as_submitter
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self.version_permission = version_permission
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def __unicode__(self):
return self.name
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class WorkflowError(Exception):
pass
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def motion_workflow_choices():
for workflow in settings.MOTION_WORKFLOW:
yield workflow[0], workflow[1]
def get_state(state='default'):
global _workflow
if _workflow is not None:
try:
return _workflow[state]
except KeyError:
raise WorkflowError('Unknown state: %s' % state)
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_workflow = {}
for workflow in settings.MOTION_WORKFLOW:
if workflow[0] == config['motion_workflow']:
try:
wf_module, wf_default_state_name = workflow[2].rsplit('.', 1)
except ValueError:
raise exceptions.ImproperlyConfigured(
'%s isn\'t a workflow module' % workflow[2])
try:
mod = import_module(wf_module)
except ImportError as e:
raise exceptions.ImproperlyConfigured(
'Error importing workflow %s: "%s"' % (wf_module, e))
try:
default_state = getattr(mod, wf_default_state_name)
except AttributeError:
raise exceptions.ImproperlyConfigured(
'Workflow module "%s" does not define a "%s" State'
% (wf_module, wf_default_state_name))
_workflow['default'] = default_state
break
else:
raise ImproperlyConfigured('Unknown workflow %s' % conf['motion_workflow'])
populate_workflow(default_state, _workflow)
return get_state(state)
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def populate_workflow(state, workflow):
workflow[state.id] = state
for s in state.next_states:
if s.id not in workflow:
populate_workflow(s, workflow)
DUMMY_STATE = State('dummy', ugettext('Unknwon state'))
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default_workflow = State('pub', ugettext('Published'), support=True,
edit_as_submitter=True, version_permission=False)
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default_workflow.next_states = [
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State('per', ugettext('Permitted'), create_poll=True, edit_as_submitter=True, next_states=[
State('acc', ugettext('Accepted')),
State('rej', ugettext('Rejected')),
State('wit', ugettext('Withdrawed')),
State('adj', ugettext('Adjourned')),
State('noc', ugettext('Not Concerned')),
State('com', ugettext('Commited a bill')),
State('rev', ugettext('Needs Review'))]),
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State('nop', ugettext('Rejected (not authorized)'))]